CN204609778U - 矿用螺纹钎头改进结构 - Google Patents
矿用螺纹钎头改进结构 Download PDFInfo
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- CN204609778U CN204609778U CN201520082402.0U CN201520082402U CN204609778U CN 204609778 U CN204609778 U CN 204609778U CN 201520082402 U CN201520082402 U CN 201520082402U CN 204609778 U CN204609778 U CN 204609778U
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Publication number | Priority date | Publication date | Assignee | Title |
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CN110977343A (zh) * | 2019-11-29 | 2020-04-10 | 安庆中船动力配套有限公司 | 一种连杆体螺纹盲孔的加工工艺 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110977343A (zh) * | 2019-11-29 | 2020-04-10 | 安庆中船动力配套有限公司 | 一种连杆体螺纹盲孔的加工工艺 |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Mining screw thread bore bit improves structure Effective date of registration: 20151120 Granted publication date: 20150902 Pledgee: Bank of Guiyang Limited by Share Ltd high tech branch Pledgor: Guiyang Jiesheng Tech-Ind Development Co., Ltd. Registration number: 2015990001027 |
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PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
C56 | Change in the name or address of the patentee | ||
CP03 | Change of name, title or address |
Address after: 550004 Guizhou city in Guiyang Province, Guiyang national hi tech Industrial Development Zone Xintian Magicstor park high tech Industrial Park Patentee after: Czech Republic, Guizhou drilling tools Limited by Share Ltd Address before: 550004, Guiyang, Guizhou province Baoshan District North Road No. 213, long union building, 11 floor Patentee before: Guiyang Jiesheng Tech-Ind Development Co., Ltd. |